4 Port Gigabit PCI-Express Network Card, Intel i350 NIC - 

ST4000SPEXI is a 4-port Gigabit Ethernet network card - PCI Express, Intel I350 NIC. This Gigabit Ethernet network card features the Intel® I350-AM4 chipset, designed to deliver the power, performance and enhanced capabilities you need for reliable network connections to your server or computer. The Intel chip provides a number of advanced driver options including IEEE 802.3ad link aggregation / teaming support, which enables you to add additional bandwidth to your system. Compliant with IEEE 802.3/u/ab standards, the network card provides full support for high-performance, four-channel networking and maximum throughput up to 1000Mbps in each direction (2000 Mbps total) - up to ten times faster than 10/100 Ethernet.